基于Romax的新能源汽车减速器齿轮修形研究

Research on Gear Modification of New Energy Vehicle Decelerator Based on Romax

以某增程式新能源汽车减速器系统为研究对象,Romax为研究平台。结合齿轮的微观修形理论,以传递误差、面载、齿根应力和接触应力作为优化目标,结合第二代遗传算法提出了一种以齿向鼓形量、齿向斜度、渐开线鼓形量、渐开线斜度综合修形的全新修形方法。通过对优化前后各目标参数的分析对比,得出修形后减小了传递误差、齿根应力等、改善了面载、应力偏载等问题,同时齿轮的传动性能得到了明显提升,其研究方法可更好地指导企业生产实践。

In this paper,a range-extender new energy vehicle reducer system is taken as the research object,and Romax is taken as the research platform.Based on the microscopic shaping theory of gears,a new amending method based on genetic algorithm is proposed to optimize four objective functions,the transmission error,surface load,tooth root stress and the contact stress,which can revise the tooth bulge,tooth slope,involute bulge and involute slope.It can be concluded by comparing the optimized objective function value with the original objective function value that the transmission error,tooth root stress,and so on decrease,and the surface load,stress bias load,and other issues are also improved.Therefore,the transmission performance of the gear is significantly improved.This method can better guide the production practice of the enterprise.